Analyze the following recursive method.

public static long factorial(int n) {
return n * factorial(n - 1);
}
a. invoking factorial(0) returns 0.
b. invoking factorial(1) returns 1.
c. invoking factorial(2) returns 2.
d. invoking factorial(3) returns 6.
e. the method runs infinitely and causes a stackoverflowerror.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.